[net] selftests: fill in some missing configs for net

We are missing a lot of config options from net selftests,
it seems:

tun/tap:     CONFIG_TUN, CONFIG_MACVLAN, CONFIG_MACVTAP
fib_tests:   CONFIG_NET_SCH_FQ_CODEL
l2tp:        CONFIG_L2TP, CONFIG_L2TP_V3, CONFIG_L2TP_IP, CONFIG_L2TP_ETH
sctp-vrf:    CONFIG_INET_DIAG
txtimestamp: CONFIG_NET_CLS_U32
vxlan_mdb:   CONFIG_BRIDGE_VLAN_FILTERING
gre_gso:     CONFIG_NET_IPGRE_DEMUX, CONFIG_IP_GRE, CONFIG_IPV6_GRE
srv6_end_dt*_l3vpn:   CONFIG_IPV6_SEG6_LWTUNNEL
ip_local_port_range:  CONFIG_MPTCP
fib_test:    CONFIG_NET_CLS_BASIC
rtnetlink:   CONFIG_MACSEC, CONFIG_NET_SCH_HTB, CONFIG_XFRM_INTERFACE
             CONFIG_NET_IPGRE, CONFIG_BONDING
fib_nexthops: CONFIG_MPLS, CONFIG_MPLS_ROUTING
vxlan_mdb:   CONFIG_NET_ACT_GACT
tls:         CONFIG_TLS, CONFIG_CRYPTO_CHACHA20POLY1305
psample:     CONFIG_PSAMPLE
fcnal:       CONFIG_TCP_MD5SIG

Try to add them in a semi-alphabetical order.

Fixes: 62199e3f1658 ("selftests: net: Add VXLAN MDB test")
Fixes: c12e0d5f267d ("self-tests: introduce self-tests for RPS default mask")
Fixes: ae5439658cce ("selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--
These are not all the options we're missing. Since the merge window
is over I may not have the time to dig into it myself :(

Adding Fixes tag for 3 semi-random commits which I think missed things.
The full list would be very long.

CC: shuah@kernel.org
CC: razor@blackwall.org
CC: idosch@nvidia.com
CC: horms@kernel.org
CC: jakub@cloudflare.com
CC: kuniyu@amazon.com
CC: linux-kselftest@vger.kernel.org
---
 tools/testing/selftests/net/config | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

On Mon, Jan 22, 2024 at 12:35 PM -08, Jakub Kicinski wrote:
> We are missing a lot of config options from net selftests,
> it seems:
>
> tun/tap:     CONFIG_TUN, CONFIG_MACVLAN, CONFIG_MACVTAP
> fib_tests:   CONFIG_NET_SCH_FQ_CODEL
> l2tp:        CONFIG_L2TP, CONFIG_L2TP_V3, CONFIG_L2TP_IP, CONFIG_L2TP_ETH
> sctp-vrf:    CONFIG_INET_DIAG
> txtimestamp: CONFIG_NET_CLS_U32
> vxlan_mdb:   CONFIG_BRIDGE_VLAN_FILTERING
> gre_gso:     CONFIG_NET_IPGRE_DEMUX, CONFIG_IP_GRE, CONFIG_IPV6_GRE
> srv6_end_dt*_l3vpn:   CONFIG_IPV6_SEG6_LWTUNNEL
> ip_local_port_range:  CONFIG_MPTCP
> fib_test:    CONFIG_NET_CLS_BASIC
> rtnetlink:   CONFIG_MACSEC, CONFIG_NET_SCH_HTB, CONFIG_XFRM_INTERFACE
>              CONFIG_NET_IPGRE, CONFIG_BONDING
> fib_nexthops: CONFIG_MPLS, CONFIG_MPLS_ROUTING
> vxlan_mdb:   CONFIG_NET_ACT_GACT
> tls:         CONFIG_TLS, CONFIG_CRYPTO_CHACHA20POLY1305
> psample:     CONFIG_PSAMPLE
> fcnal:       CONFIG_TCP_MD5SIG
>
> Try to add them in a semi-alphabetical order.
>
> Fixes: 62199e3f1658 ("selftests: net: Add VXLAN MDB test")
> Fixes: c12e0d5f267d ("self-tests: introduce self-tests for RPS default mask")
> Fixes: ae5439658cce ("selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option")

MPTCP coverage is a recent (Dec '23) addition. I must have missed it.

Fortunately we don't need to backport that far. Should be:

Fixes: 122db5e3634b ("selftests/net: add MPTCP coverage for IP_LOCAL_PORT_RANGE")

> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> --
> These are not all the options we're missing. Since the merge window
> is over I may not have the time to dig into it myself :(
>
> Adding Fixes tag for 3 semi-random commits which I think missed things.
> The full list would be very long.
>
> CC: shuah@kernel.org
> CC: razor@blackwall.org
> CC: idosch@nvidia.com
> CC: horms@kernel.org
> CC: jakub@cloudflare.com
> CC: kuniyu@amazon.com
> CC: linux-kselftest@vger.kernel.org
> ---
>  tools/testing/selftests/net/config | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>
> diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
> index 8da562a9ae87..19ff75051660 100644
> --- a/tools/testing/selftests/net/config
> +++ b/tools/testing/selftests/net/config
> @@ -1,5 +1,6 @@
>  CONFIG_USER_NS=y
>  CONFIG_NET_NS=y
> +CONFIG_BONDING=m
>  CONFIG_BPF_SYSCALL=y
>  CONFIG_TEST_BPF=m
>  CONFIG_NUMA=y
> @@ -14,9 +15,13 @@ CONFIG_VETH=y
>  CONFIG_NET_IPVTI=y
>  CONFIG_IPV6_VTI=y
>  CONFIG_DUMMY=y
> +CONFIG_BRIDGE_VLAN_FILTERING=y
>  CONFIG_BRIDGE=y
> +CONFIG_CRYPTO_CHACHA20POLY1305=m
>  CONFIG_VLAN_8021Q=y
>  CONFIG_IFB=y
> +CONFIG_INET_DIAG=y
> +CONFIG_IP_GRE=m
>  CONFIG_NETFILTER=y
>  CONFIG_NETFILTER_ADVANCED=y
>  CONFIG_NF_CONNTRACK=m
> @@ -25,15 +30,36 @@ CONFIG_IP6_NF_IPTABLES=m
>  CONFIG_IP_NF_IPTABLES=m
>  CONFIG_IP6_NF_NAT=m
>  CONFIG_IP_NF_NAT=m
> +CONFIG_IPV6_GRE=m
> +CONFIG_IPV6_SEG6_LWTUNNEL=y
> +CONFIG_L2TP_ETH=m
> +CONFIG_L2TP_IP=m
> +CONFIG_L2TP=m
> +CONFIG_L2TP_V3=y
> +CONFIG_MACSEC=m
> +CONFIG_MACVLAN=y
> +CONFIG_MACVTAP=y
> +CONFIG_MPLS=y
> +CONFIG_MPTCP=y
>  CONFIG_NF_TABLES=m
>  CONFIG_NF_TABLES_IPV6=y
>  CONFIG_NF_TABLES_IPV4=y
>  CONFIG_NFT_NAT=m
> +CONFIG_NET_ACT_GACT=m
> +CONFIG_NET_CLS_BASIC=m
> +CONFIG_NET_CLS_U32=m
> +CONFIG_NET_IPGRE_DEMUX=m
> +CONFIG_NET_IPGRE=m
> +CONFIG_NET_SCH_FQ_CODEL=m
> +CONFIG_NET_SCH_HTB=m
>  CONFIG_NET_SCH_FQ=m
>  CONFIG_NET_SCH_ETF=m
>  CONFIG_NET_SCH_NETEM=y
> +CONFIG_PSAMPLE=m
> +CONFIG_TCP_MD5SIG=y
>  CONFIG_TEST_BLACKHOLE_DEV=m
>  CONFIG_KALLSYMS=y
> +CONFIG_TLS=m
>  CONFIG_TRACEPOINTS=y
>  CONFIG_NET_DROP_MONITOR=m
>  CONFIG_NETDEVSIM=m
> @@ -48,7 +74,9 @@ CONFIG_BAREUDP=m
>  CONFIG_IPV6_IOAM6_LWTUNNEL=y
>  CONFIG_CRYPTO_SM4_GENERIC=y
>  CONFIG_AMT=m
> +CONFIG_TUN=y
>  CONFIG_VXLAN=m
>  CONFIG_IP_SCTP=m
>  CONFIG_NETFILTER_XT_MATCH_POLICY=m
>  CONFIG_CRYPTO_ARIA=y
> +CONFIG_XFRM_INTERFACE=m

On Tue, 23 Jan 2024 14:55:59 +0100 Jakub Sitnicki wrote:
> > Fixes: ae5439658cce ("selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option")  
> 
> MPTCP coverage is a recent (Dec '23) addition. I must have missed it.
> 
> Fortunately we don't need to backport that far. Should be:
> 
> Fixes: 122db5e3634b ("selftests/net: add MPTCP coverage for IP_LOCAL_PORT_RANGE")

Thanks! I'll swap when applying, if you don't mind :)

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Mon, 22 Jan 2024 12:35:28 -0800 you wrote:
> We are missing a lot of config options from net selftests,
> it seems:
> 
> tun/tap:     CONFIG_TUN, CONFIG_MACVLAN, CONFIG_MACVTAP
> fib_tests:   CONFIG_NET_SCH_FQ_CODEL
> l2tp:        CONFIG_L2TP, CONFIG_L2TP_V3, CONFIG_L2TP_IP, CONFIG_L2TP_ETH
> sctp-vrf:    CONFIG_INET_DIAG
> txtimestamp: CONFIG_NET_CLS_U32
> vxlan_mdb:   CONFIG_BRIDGE_VLAN_FILTERING
> gre_gso:     CONFIG_NET_IPGRE_DEMUX, CONFIG_IP_GRE, CONFIG_IPV6_GRE
> srv6_end_dt*_l3vpn:   CONFIG_IPV6_SEG6_LWTUNNEL
> ip_local_port_range:  CONFIG_MPTCP
> fib_test:    CONFIG_NET_CLS_BASIC
> rtnetlink:   CONFIG_MACSEC, CONFIG_NET_SCH_HTB, CONFIG_XFRM_INTERFACE
>              CONFIG_NET_IPGRE, CONFIG_BONDING
> fib_nexthops: CONFIG_MPLS, CONFIG_MPLS_ROUTING
> vxlan_mdb:   CONFIG_NET_ACT_GACT
> tls:         CONFIG_TLS, CONFIG_CRYPTO_CHACHA20POLY1305
> psample:     CONFIG_PSAMPLE
> fcnal:       CONFIG_TCP_MD5SIG
> 
> [...]

Here is the summary with links:
  - [net] selftests: fill in some missing configs for net
    https://git.kernel.org/netdev/net/c/04fe7c5029cb

You are awesome, thank you!